Question

blood pressure:
○ none of the above.
○ decreases as blood moves farther from the heart.
○ all of the above.
○ is higher in veins than arteries.
○ increases as blood moves farther from the heart.

Explanation:

To determine the correct answer, we analyze each option:

• "is higher in veins than arteries": Arteries carry blood away from the heart under high pressure, while veins have lower pressure. So this is incorrect.
• "increases as blood moves farther from the heart": Blood pressure decreases as it moves away from the heart due to resistance and vessel diameter changes. So this is incorrect.
• "all of the above": Since the previous two options are incorrect, this is also incorrect.
• "decreases as blood moves farther from the heart": This is correct because as blood flows through the circulatory system, friction and resistance cause pressure to drop with distance from the heart.
• "none of the above": Since one option is correct, this is incorrect.

Answer:

The correct option is the one with "decreases as blood moves farther from the heart." (The second option in the list: "decreases as blood moves farther from the heart.")